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Commitments and Contingencies (Details)
$ in Millions
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2022
USD ($)
Jun. 30, 2022
USD ($)
lease
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
lease
Jun. 30, 2021
USD ($)
Dec. 31, 2012
member
Sep. 30, 2020
claim
Commitments and Contingencies Disclosure [Abstract]              
Guarantor obligations, number of leases | lease   68   68      
Sample size | member           200  
Loss Contingencies [Line Items]              
Legal settlement   $ 0 $ 0 $ 484 $ 0    
State of Florida Settlement              
Loss Contingencies [Line Items]              
Legal settlement $ 484     $ 484      
Legal settlement, period of payment 18 years 18 years   18 years      
Liability recorded in association with legal settlement $ 484            
Radcliffe and Flaim v. Aetna Inc., et al | Pending Litigation              
Loss Contingencies [Line Items]              
Number of claims | claim             2